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What is the x-coordinate that describes the solution to the following system? 2x + y = 72 3y = 48A. = 28B. = 16C. = 17D. = 36

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We have to solve the system of equations for x. The equations are:


\begin{gathered} 2x+y=72 \\ 3y=48 \end{gathered}

In this case, we can replace y using the second equation and then solving for x in the first equation.

We find y as:


\begin{gathered} 3y=48 \\ y=(48)/(3) \\ y=16 \end{gathered}

Then, we replace y in the first equation and we wlll obtain:


\begin{gathered} 2x+y=72 \\ 2x+16=72 \\ 2x=72-16 \\ 2x=56 \\ x=(56)/(2) \\ x=28 \end{gathered}

Answer: x = 28 [Option A]

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